/**************************************************************************** ** ** Copyright (C) 2015 Intel Corporation ** ** Permission is hereby granted, free of charge, to any person obtaining a copy ** of this software and associated documentation files (the "Software"), to deal ** in the Software without restriction, including without limitation the rights ** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell ** copies of the Software, and to permit persons to whom the Software is ** furnished to do so, subject to the following conditions: ** ** The above copyright notice and this permission notice shall be included in ** all copies or substantial portions of the Software. ** ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR ** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, ** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE ** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER ** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN ** THE SOFTWARE. ** ****************************************************************************/ #define _BSD_SOURCE 1 #define _DEFAULT_SOURCE 1 #ifndef __STDC_LIMIT_MACROS # define __STDC_LIMIT_MACROS 1 #endif #include "cbor.h" #include "cborconstants_p.h" #include "compilersupport_p.h" #include "extract_number_p.h" #include #include "assert_p.h" /* Always include last */ /** * \addtogroup CborEncoding * @{ */ /** * * Closes the CBOR container (array or map) provided by \a containerEncoder and * updates the CBOR stream provided by \a encoder. Both parameters must be the * same as were passed to cbor_encoder_create_array() or * cbor_encoder_create_map(). * * Unlike cbor_encoder_close_container(), this function checks that the number * of items (or pair of items, in the case of a map) was correct. If the number * of items inserted does not match the length originally passed to * cbor_encoder_create_array() or cbor_encoder_create_map(), this function * returns either CborErrorTooFewItems or CborErrorTooManyItems. * * \sa cbor_encoder_create_array(), cbor_encoder_create_map() */ CborError cbor_encoder_close_container_checked(CborEncoder *encoder, const CborEncoder *containerEncoder) { const uint8_t *ptr = encoder->data.ptr; CborError err = cbor_encoder_close_container(encoder, containerEncoder); if (containerEncoder->flags & CborIteratorFlag_UnknownLength || encoder->end == NULL) return err; /* check what the original length was */ uint64_t actually_added; err = extract_number(&ptr, encoder->data.ptr, &actually_added); if (err) return err; if (containerEncoder->flags & CborIteratorFlag_ContainerIsMap) { if (actually_added > SIZE_MAX / 2) return CborErrorDataTooLarge; actually_added *= 2; } return actually_added == containerEncoder->added ? CborNoError : actually_added < containerEncoder->added ? CborErrorTooManyItems : CborErrorTooFewItems; } /** @} */